I never found Minecraft to have much replay value in singleplayer. I usually get bored of out my mind roughly 20 minutes into a world. Perhaps it's my imagination or something, but I just find it dull. I think the landscape generation has a lot to do with it - it's just not interesting. It has this sick, isotropic "this has been generated procedurally" feel to it, though that's just my opinion.

Also, the lack of anti-aliasing and mipmapping really strains my eyes. I've been waiting a long time for this, but apparently Mojang is not able to add a boolean flag and two lines of code to their pipeline, so you need to download a mod, which requires modloader, which requires some other dependency which only works half the time and breaks with every update (and, no, you can't force it through the device control panel - that trick works for nVidia but AMD doesn't play nice with it). But anyway.

Multiplayer on a good server can be really fun, though, when latency isn't too high.

The slowsort algorithm is a perfect illustration of the multiply and surrender paradigm, which is perhaps the single most important paradigm in the development of reluctant algorithms. The basic multiply and surrender strategy consists in replacing the problem at hand by two or more subproblems, each slightly simpler than the original, and continue multiplying subproblems and subsubproblems recursively in this fashion as long as possible. At some point the subproblems will all become so simple that their solution can no longer be postponed, and we will have to surrender. Experience shows that, in most cases, by the time this point is reached the total work will be substantially higher than what could have been wasted by a more direct approach.

me and my friends have a private server, and run tekkit on it, which has given us 10 fold worth to do, i've been building small games with computercraft such as pong/tetris/snake, i'm thinking of trying to do a platformer next,

it was very humorous, i was looking up how to get a random number in lua by googling "lua random", and the first result brought me to this, 6 years ago when i was just starting out, i asked the same question, i disabled personal results and apparently it's listed at the #3 result, still it was quite a blast from the past.